Correct Answer: A

Rationale: The presentation described in the question is most consistent with anterior uveitis. Anterior uveitis, also known as iritis, is characterized by redness, pain, and photophobia in the affected eye. Slit-lamp examination typically reveals ciliary injection (reddening of the conjunctiva and episclera), corneal edema, and a mid-dilated pupil with a fixed reaction to light (miosis). This occurs due to inflammation within the anterior chamber of the eye involving the iris and ciliary body.

Correct Answer: C

Rationale: Acute appendicitis is the most likely cause of the symptoms described in the pregnant woman. The classic presentation of acute appendicitis includes fever, chills, abdominal pain localized to the right lower quadrant, rebound tenderness, and guarding. Pregnant women are at a slightly higher risk of developing appendicitis due to anatomic changes and increased abdominal pressure during pregnancy, which can lead to an atypical presentation of symptoms. Prompt diagnosis and surgical intervention are crucial to prevent complications such as perforation, which can be detrimental for both the mother and the fetus.

Correct Answer: A

Rationale: Plasma cells are the primary type of cells responsible for the production of antibodies during the humoral immune response. When activated by antigens, B cells differentiate into plasma cells, which are specialized in producing large quantities of antibodies. These antibodies are essential in fighting off infections by binding to antigens and marking them for destruction by other immune cells. T helper cells assist in activating B cells, but the actual production of antibodies is mainly carried out by plasma cells. Memory B cells are involved in mounting a rapid and specific secondary response upon re-exposure to the same antigen. Macrophages play a role in phagocytosis and antigen presentation, but they are not the primary cells responsible for producing antibodies during the humoral immune response.

Correct Answer: B

Rationale: Attending a lecture-demonstration on doing first aid is essential for the growth of a student nurse as it equips them with crucial knowledge and skills to respond effectively in emergency situations. First aid training teaches basic life-saving techniques and how to provide immediate care until medical professionals arrive. This knowledge is vital in the healthcare field, allowing the student nurse to provide immediate assistance and potentially save lives. By learning first aid procedures, the student nurse can enhance their skills, confidence, and overall capability to care for patients in various settings. This continuous learning and improvement are key to personal growth and professional development in the healthcare industry.

Correct Answer: A

Rationale: Encouraging frequent position changes, including the hands-and-knees position, is the most appropriate nursing intervention in this scenario. This position is known to help rotate the baby from a persistent posterior position to an optimal anterior position for delivery. The hands-and-knees position can help take pressure off the mother's back, alleviate back pain, and facilitate the rotation of the baby's head to engage in the mother's pelvis, thus promoting labor progress. It is a non-invasive and effective way to promote fetal rotation without the need for immediate instrumental delivery or intravenous analgesics. Continuous fetal monitoring is important for assessing fetal well-being but would not directly address the issue of posterior fetal position and the associated prolonged labor.